Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 21/40 from 63/35

1st number: 1 28/35, 2nd number: 21/40

63/35 - 21/40 is 51/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 35 × 8 = 280,
    63/35 = 63 × 8/35 × 8 = 504/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    21/40 = 21 × 7/40 × 7 = 147/280
  4. Subtract the two like fractions:
    504/280 - 147/280 = 504 - 147/280 = 357/280
  5. After reducing the fraction, the answer is 51/40
  6. In mixed form: 111/40

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

© everydaycalculation.com